Thread: Mild steel box section pricing
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29-08-2021 #1
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29-08-2021 #2
That looks very like my local supplier, Austen Knapman. All I can say is that their online prices are always higher than you pay if you just walk in or order over the phone for collection. Saves maybe 20-30% on web prices. I last bought box section from them a few years ago when I built my router, and that was only 50x50x3, so no idea how that matches the going rate.
You are a long way from South Devon, though...
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29-08-2021 #3
Few years ago when I was going through the pricing up stage the mild steel sections was dirt cheap and it was costing me around £500-£800 tops to make the frame now I'm looking at probably around £2.5-£3k. The 3mm thickness ain't too bad but isn't that a little too thin?
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29-08-2021 #4
Steel prices have at least doubled in the last year or so but that does sound expensive for only 3mtrs, I would expect to pay about that for 7.5mtr length. Steel is also in short supply and I think some suppliers have their pirate hats on.!
Like Neale says deal with a local supplier rather than through the internet and you'll get it cheaper.
3mm is too thin for the mainframe but will be ok for a base frame, I wouldn't go less than 4mm for the mainframe. Why 90mm.? That's not a common size so you'll be paying more for that.!-use common sense, if you lack it, there is no software to help that.
Email: [email protected]
Web site: www.jazzcnc.co.uk
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29-08-2021 #5
Mainframe and base frame?
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29-08-2021 #6
Thanks Dean and Neale I'll hunt around my local area.
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29-08-2021 #7
Check out Nottingham Steel Supplies in Colwick. It doesn't hurt to talk to them,
Cheers,
Rob
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29-08-2021 #8
I live 5 mins from there as well lol. Thanks Rob I'll check them out
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30-08-2021 #9An optimist says the glass is half full, a pessimist says the glass is half empty, an engineer says you're using the wrong sized glass.
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30-08-2021 #10
Quick comment on thickness - yes, with experience, 3mm is too thin. It's strong enough (the sections supporting the X rails are 100x50, the rest is 50x50) but is inclined to ring a bit. Thicker would provide more intrinsic damping, I think, and I would go for 4mm and, possibly, 5mm for some elements despite the extra weight. That's for a 1500x750 cutting area. There are other things I would change as well with experience, but at the time I built it, there was less information around than there is now.
But this one took me long enough to build so no plans for replacing it any time soon!
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